Which one should I pick for a new project?

I can only provide analysis to help you decide based on what each project does — I can't recommend which is "better" for your needs without knowing your use case.

Here's what they are:

jordanbaird/ice [29517 stars]

• A menu bar manager for macOS — hides/shows menu bar items, organizes them, adds UI controls
• Written in Swift
• Active development but last commit 12 months ago per RepoPilot
• Architecture grade: C (50/100) — RepoPilot notes 0 internal imports parsed, which suggests analysis limits
• Dependency security: 0 CVEs in 0 scanned dependencies
• OpenSSF Scorecard: 2.5/10 (weakest: no dependency update tool, security policy, or SAST)

runjuu/inputsourcepro

• An input source switcher for macOS — manages keyboard layouts and input methods, with app-specific rules
• Written in Swift (with Objective-C bridging, Carbon, AppKit)
• No metadata on commit recency or architecture grade provided
• Persistence layer uses Core Data (AppRule, BrowserRule, KeyboardConfig entities)

They solve different problems. Pick based on:

• Do you need menu bar organization? → ice
• Do you need keyboard/input source management? → inputsourcepro

If you're building something new, also consider that ice has better public health signals (stars, active repo) but weaker security/maintenance practices (low OpenSSF score, no recent commits).

FOLLOW_UPS:

• What problem are you solving in your project?
• Do you need UI components from either codebase?
• Are you building a macOS menu bar tool?